I think I might be revealing myself too much but here it goes...
I don't give a shit about who you're attracted to. It's your life and do whatever you want. Just be honest.
(A part of being completely honest with yourself is knowing that you're a product of your environment and your experiences.)
A part of being completely honest with yourself is understanding that your brain works in a way to salvage your self image and self-esteem. You are not a total rational being. You'll seek information that'll make you feel better about yourself regardless if it's true, false, helpful, or harmful. Some people understand this to a point. Others are oblivious to this fact.
For instance, confirmation bias. A lot of people seek information that agrees with them. This thread. See how you responded to the first post that agreed with what you wanted to see replied to your thread?
Truth is, ageism is big in the straight community. Many of my single straight friends bring up age differences in dating all the time.
Your thread implies that straights don't have issues with age but there are tons of instances in movies, novels, etc, where the issue is brought up.
My suggestion to you, thread creator, is to open your mind. Quit with the selection bias and TRULY challenge yourself once in a while.
I don't expect you to change your opinions, but maybe you'll grow a little bit wiser.